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2026 Compare Cities People:
Simi Valley, CA vs Sioux City, IA

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Highlights
- Sioux City is 0% more densely populated than Simi Valley.
- People are 6.7% less likely to be married in Sioux City.
- The Median Age is 6.2 years younger in Sioux City.
 Simi Valley, CASioux City, IAUnited States
 Population  Unlock85,081329,725,481
 Female Population51.0%  Unlock50.5%
 Male Population49.1%  Unlock49.5%
 Median Age  Unlock34.838.4
 space3
 Population - 2010124,424  Unlock309,327,143
 Population - 2000  Unlock85,013285,036,114
 Population - 1990100,217  Unlock251,960,433
 Pop. 2000 to Now  Unlock-2.7%15.6%
 Pop. 1990 to Now24.9%  Unlock30.8%
 space4
 Population Density  Unlock1,455.793.4
 Land Area41.5  Unlock3,531,905.4
 Water Area  Unlock1.2264,836.8
 space
 Est. Total Population By Age
 Simi Valley, CASioux City, IAUnited States
 Age 0 to 45.2%  Unlock5.9%
 Age 5 to 9  Unlock7.5%6.1%
 Age 10 to 146.6%  Unlock6.6%
 Age 15 to 17  Unlock4.4%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock5.7%5.2%
 Age 25 to 3413.3%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock6.0%6.7%
 Age 60 to 646.7%  Unlock6.3%
 Age 65 to 74  Unlock8.4%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Simi Valley, CASioux City, IAUnited States
 White57.6%  Unlock59.4%
 Black  Unlock4.5%12.2%
 Asian11.1%  Unlock5.6%
 Native American  Unlock1.8%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock20.9%18.4%
 space2
 Marriage & Family
 Simi Valley, CASioux City, IAUnited States
 Married Population50.5%  Unlock49.8%
     Currently Married  Unlock45.1%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock52.9%50.2%
 Never Married33.6%  Unlock33.8%
 Divorced  Unlock12.0%10.8%
 Widowed5.9%  Unlock5.6%
 space5
 Household Size  Unlock2.572.60
 Households43,893  Unlock124,010,992
 Family Households  Unlock20,17580,755,759
     Married couple, w/children32.3%  Unlock30.5%
     Married couple, no children  Unlock36.9%42.9%
 Non Family Households12,928  Unlock43,255,233
     Single householder, w/children  Unlock24.0%15.8%
     Single householder, no children12.8%  Unlock10.8%
Voting
Reviews for Simi Valley    22 Reviews
Arnold · Simi Valley, CA
Growing Challenges- housing costs and still the "
Over 5 years ago

I've live in two different neighborhoods since fall of 1996 and depending on the neighborhood you're quality of life experience will vary. The price of housing is such  More

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Joseph · Simi Valley, CA
Great city(Little Pricey)
Over 16 years ago

I have lived in Simi Valley for 23 Years. I love it here but due to the cost of living am looking to relocate to another state/City where my money will go further. Simi  More

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john · Simi Valley, CA
good place to live
Over 17 years ago

simi valley is a very nice place to live within the shadow of the LA metro area. it has low crime and reasonable housing costs with ready access to indoor and outdoor  More

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Reviews for Sioux City    12 Reviews
Maureen · Sioux City, IA
Unclench, Siouxland...
Over 8 years ago

I’ve been here only 4 months and I’m still shocked at how people behave. Not friendly, rude. Can’t tell you how many businesses I’ve been in to where the reception staff  More

   |    Reply
Mike · Sioux City, IA
Sioux City, Woodbury, Iowa
Over 11 years ago

Climate in winter ranges from 10-15 degrees to 85+ in the summer 7% sale tax population @75,000, economy ok  More

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Joshua · Sioux City, IA
Great Place!!!!!!!!!!!!!
Over 15 years ago

Sioux City is an amazing place. Low crime rate, Great Schools, Great People, Most People are friendly and Polite. Just an overall great place to live!!!!!!!!!!!   More

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Learn More About Simi Valley, California
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Learn More About Sioux City, Iowa
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